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An analysis of developmental plastic...

Osborne, Daniel L.

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An analysis of developmental plasticity in structural geometry at the proximal femur in adolescent females living in the United States.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	An analysis of developmental plasticity in structural geometry at the proximal femur in adolescent females living in the United States./
作者:	Osborne, Daniel L.
面頁冊數:	211 p.
附註:	Advisers: Della Collins Cook; David Burr.
Contained By:	Dissertation Abstracts International68-05A.
標題:	Anthropology, Medical and Forensic. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3264308
ISBN:	9780549024514

An analysis of developmental plasticity in structural geometry at the proximal femur in adolescent females living in the United States.
Osborne, Daniel L.

An analysis of developmental plasticity in structural geometry at the proximal femur in adolescent females living in the United States. - 211 p.

Advisers: Della Collins Cook; David Burr.

Thesis (Ph.D.)--Indiana University, 2007.

The extended period of growth and development in humans optimizes adaptation and acclimatization to a variety of external factors. Nutrition, disease, and activity mediate the body's response to the environment during growth and can have ramifications for adult health. The influence of the environment is often reflected in the skeleton. In addition to environmental forces, variation in skeletal morphology is determined by genes. To address the extent to which modifications to nutrition and physical activity influence this variation, structural geometry at the proximal femur was analyzed in a sample of adolescent females living in the U.S.

ISBN: 9780549024514Subjects--Topical Terms:

1020279
Anthropology, Medical and Forensic.

An analysis of developmental plasticity in structural geometry at the proximal femur in adolescent females living in the United States.
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100 1 $a Osborne, Daniel L. $3 1270465
245 1 3 $a An analysis of developmental plasticity in structural geometry at the proximal femur in adolescent females living in the United States.
300 $a 211 p.
500 $a Advisers: Della Collins Cook; David Burr.
500 $a Source: Dissertation Abstracts International, Volume: 68-05, Section: A, page: 2031.
502 $a Thesis (Ph.D.)--Indiana University, 2007.
520 $a The extended period of growth and development in humans optimizes adaptation and acclimatization to a variety of external factors. Nutrition, disease, and activity mediate the body's response to the environment during growth and can have ramifications for adult health. The influence of the environment is often reflected in the skeleton. In addition to environmental forces, variation in skeletal morphology is determined by genes. To address the extent to which modifications to nutrition and physical activity influence this variation, structural geometry at the proximal femur was analyzed in a sample of adolescent females living in the U.S.
520 $a Dual X-ray absorptiometry images of the proximal femora of adolescent females (n = 748) were examined using the Advanced Hip Analysis (AHA) program (GE Lunar). Subjects were recruited from public and private area middle-schools in Arizona, California, Hawaii, Indiana, Nevada, and Ohio. Subjects used in this analysis were female, with age at baseline measurement ranging from 10-12 years. Subjects were self classified as Asian, Hispanic, or White. Females from these ethnic groups were selected because they experience greater bone loss as adults.
520 $a Data are presented describing the effect of factors influencing variation in structural geometry. Outcome measures include cross sectional area (A), hip axis length (HAL), distance from center of mass (y), average neck diameter (d3), section modulus (Z), distance form head center to minimum cross sectional moment of inertia (d1), and distance from head center to neck/shaft axis intersection (d2).
520 $a Analysis of covariance suggests that lean body mass has a significant effect on each measure of structural geometry. At baseline, there are no significant differences between the experiment and control groups. State of residence and ethnicity were confounded for many of the outcome variables, but ethnic groups differ significantly in these measures of geometry. Tanner stage had a significant effect on A, HAL, and Z. State of residence, a proxy for latitude, had a significant effect on A, HAL, y, and Z in Asians, but not Hispanics. For the most part structural geometry does not appear to be influenced by calcium consumption or physical activity, although there are some exceptions to this.
590 $a School code: 0093.
650 4 $a Anthropology, Medical and Forensic. $3 1020279
650 4 $a Anthropology, Physical. $3 877524
650 4 $a Biology, Anatomy. $3 1021727
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710 2 $a Indiana University. $b Anthropology. $3 1270466
773 0 $t Dissertation Abstracts International $g 68-05A.
790 $a 0093
790 1 0 $a Burr, David, $e advisor
790 1 0 $a Collins Cook, Della, $e advisor
791 $a Ph.D.
792 $a 2007
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3264308